No, a shorter hose does not increase pressure. Pressure in a closed system like a hose remains constant regardless of its length, assuming no additional pumps or compressors are involved.
Pressure in a fluid system is primarily determined by the force applied to the fluid and the area over which that force is distributed. In a hose, the pressure is generated by a pump or another pressure source that pushes the fluid through the hose. The pressure remains the same as long as the pump maintains a constant output pressure.
The fluid’s flow rate may change with a shorter hose. A shorter hose may allow the liquid to flow more quickly due to reduced friction and resistance, resulting in a higher flow rate. However, the pressure at any point within the hose will remain the same.